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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 10:43 am Post subject: what is the difference? |
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i am looking to rebuild my 1600dp. i really want to split the cases and install a new performance crankshaft and a cam new lifters the whole thing but i just can not find what would work with the 88mm x 69-76mm Hypereutectic Slip-In Piston & Cylinder Set, AA Brand, Type 1. any info will help.. thanks
BTW whats is the difference between these: 88mm x 69-76mm Hypereutectic Slip-In Piston & Cylinder Set, AA Brand, Type 1 and 1003 Big Bore Kits - 87mm High Performance from CB performance? any info will help
thanks first time builder. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76940 Location: Sneaking up behind you
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Posted: Sun Nov 18, 2012 10:45 am Post subject: Re: what is the difference? |
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schultzy77 wrote: |
BTW whats is the difference between these: 88mm x 69-76mm Hypereutectic Slip-In Piston & Cylinder Set, AA Brand, Type 1 and 1003 Big Bore Kits - 87mm High Performance from CB performance? any info will help
thanks first time builder. |
88mm is 1mm larger than 87mm. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 11:06 am Post subject: |
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witch is better to buy? |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76940 Location: Sneaking up behind you
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Posted: Sun Nov 18, 2012 11:07 am Post subject: |
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I'm not a fan of slip in 88s due to the thin walls. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
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DarthWeber Samba Member
Joined: November 24, 2007 Posts: 7543 Location: Whittier,CA
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Posted: Sun Nov 18, 2012 11:43 am Post subject: Re: what is the difference? |
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schultzy77 wrote: |
thanks first time builder. |
You need to do some serious reading Shultzy. You can't, or shouldn't, just dive into an engine build. I suggest you take full advantage of the tech articles John has written on his web site AirCooled.Net. There are also tech articles available on CalLook.Com. You should also read Tom Wilson's Rebuilding Your VW Engine book and, of course, you should have the appropriate VW Bentley Manual for your year VW.
If you ask here, without having some background knowledge on VW engine combos, all you'll get are 1,000 different opinions (many good suggestions) but you won't know which way to go. The more you read and learn, the more apparent it will become that there are certain combos which are more common than others. You'll know which ones to avoid and which ones "work". _________________
Mitey62 wrote: |
Swapped the Compufire for a Bosch blue and some points I had sitting around, started 1st crank. Took her out for a drive, pulls harder, more RPM, and runs smoother. I think I'll be sticking with points from now on. |
RockCrusher wrote: |
JB weld the case halves....that'll keep the fretting to a minimum. |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 2:18 pm Post subject: |
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i have all those books and have been doing alot of reading thanks just wondering if anyone has anymore info on what a good bottom end (cam/crankshaft size rod size) would be for this type of build (if any at all) and also why is there a big price difference in- CB's 87mm"High Performance" Big Bore Kit and aircooled.net 88 kit? |
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DarthWeber Samba Member
Joined: November 24, 2007 Posts: 7543 Location: Whittier,CA
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Posted: Sun Nov 18, 2012 2:44 pm Post subject: |
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OK, if you are building, say, an 1849 - you didn't say what you are considering - then I'd choose a DPR 76mm crank and flywheel, 5.325" H beam rods, a set of machine in 88's or a set of the AC.N turned down 88's. They are machine in 88's with the cylinder bases turned down to fit the 85.5 holes. I'd run an Engle W110 or Web 163 cam.
I wouldn't even consider 87's with the availability of the turned down 88's. _________________
Mitey62 wrote: |
Swapped the Compufire for a Bosch blue and some points I had sitting around, started 1st crank. Took her out for a drive, pulls harder, more RPM, and runs smoother. I think I'll be sticking with points from now on. |
RockCrusher wrote: |
JB weld the case halves....that'll keep the fretting to a minimum. |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76940 Location: Sneaking up behind you
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Posted: Sun Nov 18, 2012 2:48 pm Post subject: |
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Darth,
sounds like he wants a "no machine" build so the 88s are no good since you have to machine the heads. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 2:53 pm Post subject: |
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trying to build a no machine build |
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DarthWeber Samba Member
Joined: November 24, 2007 Posts: 7543 Location: Whittier,CA
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Posted: Sun Nov 18, 2012 2:55 pm Post subject: |
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Dang, and I had my sledge hammer out getting ready to beat some sense into him.
OK, at a list price of $340, the CB 87's sound like they are forged pistons although it doesn't actually say that in the ad. That's about the difference between forged vs. cast or hypereutectic pistons. _________________
Mitey62 wrote: |
Swapped the Compufire for a Bosch blue and some points I had sitting around, started 1st crank. Took her out for a drive, pulls harder, more RPM, and runs smoother. I think I'll be sticking with points from now on. |
RockCrusher wrote: |
JB weld the case halves....that'll keep the fretting to a minimum. |
Last edited by DarthWeber on Sun Nov 18, 2012 3:00 pm; edited 1 time in total |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 2:57 pm Post subject: |
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would like to build as much power/torque with out machining anything any ideas |
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NJ John Samba Member
Joined: September 21, 2007 Posts: 2224 Location: HdG, MD & NJ
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Posted: Sun Nov 18, 2012 3:02 pm Post subject: |
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85.5 p/c _________________ 1973 standard, yellow, lowered, 3” narrowed front, 1600 blo-thru turbo w/single dell 15.4@86, so far
11.41 et buggy. Long gone
Let’s go O’s! Let’s go O’s!
https://www.youtube.com/@AirSpooledGarage |
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vwracerdave Samba Member
Joined: November 11, 2004 Posts: 15309 Location: Deep in the 405
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Posted: Sun Nov 18, 2012 3:11 pm Post subject: |
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Why are you against machining? _________________ 2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK |
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modok Samba Member
Joined: October 30, 2009 Posts: 26790 Location: Colorado Springs
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Posted: Sun Nov 18, 2012 3:16 pm Post subject: |
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Turbo
Get a job hippie
ok, first off you can't re-build an engine without machine work, unless there is nothing major wrong with it to begin with.
When you re-build one of these things USUALLY you re-surface the heads and case anyway, because the cylinders SINK into them. If you get a new case it's a shame to bore it out right off the bat but you know what? the decks aren't even on a lot of them!
SLIP IN CYLINDERS are a waste of time. I'd rather throw a 74 stroke crank in there, you'll FEEL that! |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 3:35 pm Post subject: |
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its not me the guy that owns the machine shop around here hates vw's so he charges a lot of money he wants $850 to machine my cases i told him i could buy new ones for that price he said i know |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 3:52 pm Post subject: |
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only rebuilding because i want more power. by the sounds of things i should just buy new cases and build a bigger engine thanks for all the info guys |
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modok Samba Member
Joined: October 30, 2009 Posts: 26790 Location: Colorado Springs
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Posted: Sun Nov 18, 2012 4:06 pm Post subject: |
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Whoa, that is crazy. Check the classifieds, I bet you can buy a decent engine case ready to go for half that. |
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ONEBADBUG Samba Member
Joined: January 27, 2004 Posts: 183 Location: SPOKANE, WA
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Posted: Sun Nov 18, 2012 4:07 pm Post subject: |
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schultzy77 wrote: |
its not me the guy that owns the machine shop around here hates vw's so he charges a lot of money he wants $850 to machine my cases i told him i could buy new ones for that price he said i know |
You could ship your parts to a good machine shop. The odds of your old case needing no work is slim. |
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[email protected] Samba Member
Joined: August 03, 2002 Posts: 12785 Location: Salt Lake City, Utah
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Posted: Sun Nov 18, 2012 5:24 pm Post subject: |
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IF you are buying new heads, you can order them bored to 92mm, allowing you to use the thick wall 88s usable without machining the case. It all depends on what parts you are going to re-use. _________________ It's just advice, do whatever you want with it!
Please do NOT send me Private Messages through the Samba PM System (I will not see them). Send me an e-mail to john at aircooled dot net
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and get a 5% off code for use on one order for VW Parts ON OUR PARTS STORE WEBSITE, vwparts.aircooled.net |
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schultzy77 Samba Member
Joined: June 11, 2009 Posts: 23 Location: North Hampton
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Posted: Sun Nov 18, 2012 5:56 pm Post subject: |
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thanks John, looking forward to talking to someone a aircooled.net i will be ordering new heads |
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